Zac the puppet learns a lot from his next-door neighbor Mrs. Walker. Every encounter in the backyard brings a new opportunity to explore concepts and to review math facts. This educational series consists of 12 fifteen-minute episodes on two videos. Episodes cover place value to 100, money, time and calendars, metric measurement, customary measurement, geometry, fractions, two-digit addition and subtraction, and renaming readiness. Despite some corny jokes, Mrs. Walker's explanations are clear and easy to understand. In fact, her demonstration on how to tell time is one of the best that I've ever seen. ~ Anh